Description

This bottom bracket shell is designed for 86 mm PF30 applications. The outside is 2" OD by 87 mm wide, allowing 1 mm for finishing, and is relieved to 1.946". The inside diameter is supplied .5 mm undersized, to 45.5 mm (1.791"), and must be finished to width and size after fabrication by the frame builder. Machined from 4130 steel, it is relieved in the center for weight reduction to 47.24 mm (1.860").